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| LM393 Description The LM393 consists of two independent voltage comparators. These were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships. Features Wide supply voltage range Low supply current drain independent of supply voltage. Low input biasing current Low input offset current Low input offset voltage Input common-mode voltage range includes GND Differential input voltage range equal to the power supply voltage Low output saturation voltage Output voltage compatible with TTL, MOS and CMOS logic 8 1 8 1 SOP - 8 DIP - 8 Packag e Internal Block Digram OUTPUT A INVERTING INPUT A NON-INVERTING INPUT A GND 1 2 3 4 A B 8 7 6 V+ OUTPUT B INVERTING INPUT B 5 NON- TOP VIEW BEIJING ESTEK ELECTRONICS CO.,LTD 1 LM393 Electrical Characteristics at specified free-air temperature, Vcc = 5 V (unless otherwise noted) Symbol Parameter Test conditions* Min VIO Input offset voltage Vcc = 5 V to 30V, VIC = VICR min, Vo=1.4 V Vo=1.4 V 25 Full range 25 Full range IIB Input bias current Vo=1.4 V 25 Full range VICR Common-mode input voltage range** 25 Full range AVD Large-signal differential voltage amplification High-level output current Vcc = 15 V, Vo=1.4V to 11.4 V, RL 15 k to Vcc VOH=5 V, V ID=1V, VOH= 30V, V ID=1V VOL Low-level output voltage IOL = 4 mA, VID=-1V 25 0 to Vcc-1.5 0 to Vcc - 2 50 200 V/mV -25 5 LM393 Typ 2 Max 5 9 50 150 -250 -400 V nA nA mV Units lIO Input offset current lOH 25 Full range 25 Full range 0.1 50 1 nA A mV 150 400 700 lOL ICC Low-level output current Supply current VOL= 1.5V, VID=-1V RL = VCC = 5V VCC = 30V 25 25 Full range 6 0.8 1 2.5 mA mA * Full range (MIN to MAX), for the LM393 is to 70 . All characteristics are measured with zero common-mode input voltage unless otherwise specified. ** The voltage at either input or common-mode should not be allowed to go negative by more than 0.3V. The upper end of the common mode voltage range is V CC -1.5V, but either or both inputs can go to 30V without damage. Switching Charactristics Vcc=5V, A=25 C Parameter Response time RL connected to 5V through 5.1 k, CL=15pF* (See Note 1) Test conditions 100-mV input step with 5-mV overdrive TTL-level input step Min Typ 1.3 0.3 Max Units s * CL includes probe and jig capacitance. Note 1: The response time specified is the interval between the input step function and the instant when the output crosses 1.4V. BEIJING ESTEK ELECTRONICS CO.,LTD 2 LM393 Typical Applications Circuit Driving TTL Driving CMOS Squarewave Oscillator Basic Comparator Pulse Generator Crystal Controlled Oscillator BEIJING ESTEK ELECTRONICS CO.,LTD 3 LM393 Ordering Information O RDERING NUM BER LM393 P ACK AG E DIP - 8 / SOP - 8 M ARKIN G LM393 Address : Postalcode:100039 Tel: 86-010-58895780 / 81 / 82 / 83 / 84 Http://www.estek.com.cn Email:sales@estek.com.cn 6A06--6A07 Rm 6A07,Changyin Office Building ,No.88,Yong Ding Road,Hai Dian District ,Beijing Fax : 010-58895793 REV No:01-060820 BEIJING ESTEK ELECTRONICS CO.,LTD 4 |
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